1664192146 has 8 divisors (see below), whose sum is σ = 2531447424. Its totient is φ = 820376340.

The previous prime is 1664192143. The next prime is 1664192147. The reversal of 1664192146 is 6412914661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1664192099 and 1664192108.

It is not an unprimeable number, because it can be changed into a prime (1664192143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5859690 + ... + 5859973.

It is an arithmetic number, because the mean of its divisors is an integer number (316430928).

Almost surely, 2^1664192146 is an apocalyptic number.

1664192146 is a deficient number, since it is larger than the sum of its proper divisors (867255278).

1664192146 is a wasteful number, since it uses less digits than its factorization.

1664192146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11719736.

The product of its digits is 62208, while the sum is 40.

The square root of 1664192146 is about 40794.5112239380. The cubic root of 1664192146 is about 1185.0440371274.

The spelling of 1664192146 in words is "one billion, six hundred sixty-four million, one hundred ninety-two thousand, one hundred forty-six".